AIR HEATER Russian patent published in 1997 - IPC

FIELD: mechanical engineering; design of processing equipment, pipelines, different materials and paint coatings. SUBSTANCE: heating section is arranged in housing in direction of main air flow of swirled air so that plane of its location intersects simultaneously inlet and outlet holes of housing to which inlet and outlet branch pipes are tangentially connected. In initial section of housing, heating section does not come in contact with expanding air flow. EFFECT: improved quality of heating. 3 cl, 2 dwg